by Brian Benchoff August 01, 2016
Hackaday was at HOPE last weekend, and that means we got the goods from what is possibly the best security conference on the east coast. Some of us, however, were trapped in the vendor area being accosted by people wearing an improbable amount of Mr. Robot merch asking, ‘so what is Hackaday?’. We’ve all seen The Merchants Of Cool, but that doesn’t mean everyone was a vapid expression of modern marketing. Some people even brought some of their projects to show off. [Jeff] of reelyActive stopped by the booth and showed off what his team has been working on. It’s a software platform that turns all your wireless mice, Fitbits, and phones into a smart sensor platform using off the shelf hardware and a connection to the Internet.
[Jeff]’s demo unit (shown above) is simply a Raspberry Pi 3 with WiFi and Bluetooth, and an SD card loaded up with reelyActive’s software. Connect the Pi to the Internet, and you have a smart space that listens for local Bluetooth devices and relays the identity and MAC address of all Bluetooth devices in range up to the Internet.
The ability to set up a hub and detect Bluetooth devices solves the problem Bluetooth beacons solves — identifying when people enter a space, leave a space, and with a little bit of logic where people are located in a space — simply by using what they’re already wearing. Judging from what [Jeff] showed with his portable reelyActive hub (a Pi and a battery pack) a lot of people at HOPE are wearing Fitbits, wireless headphones, and leaving the Bluetooth on the phone on all the time. That’s a great way to tell where people are, providing a bridge between the physical world and the digital.
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